<template>
  <span>{{ date }}</span>
</template>
<script lang="ts" setup>
  import { ref, watch } from 'vue';
  import { useI18n } from '@/hooks/web/useI18n';
  import { useIntervalFn } from '@vueuse/core';
  import { formatToDateTime, formatToDate, dateUtil } from '@/utils/dateUtil';
  import { isNumber, isObject, isString } from '@/utils/is';
  import { propTypes } from '@/utils/propTypes';

  defineOptions({ name: 'Time' });

  const props = defineProps({
    value: propTypes.oneOfType([propTypes.number, propTypes.instanceOf(Date), propTypes.string])
      .isRequired,
    step: propTypes.number.def(60),
    mode: propTypes.oneOf(['date', 'datetime', 'relative']).def('relative'),
  });

  const ONE_SECONDS = 1000;
  const ONE_MINUTES = ONE_SECONDS * 60;
  const ONE_HOUR = ONE_MINUTES * 60;
  const ONE_DAY = ONE_HOUR * 24;

  const date = ref('');

  const { t } = useI18n();

  useIntervalFn(setTime, props.step * ONE_SECONDS);

  watch(
    () => props.value,
    () => {
      setTime();
    },
    { immediate: true },
  );

  function getTime() {
    const { value } = props;
    let time = 0;
    if (isNumber(value)) {
      const timestamp = value.toString().length > 10 ? value : value * 1000;
      time = new Date(timestamp).getTime();
    } else if (isString(value)) {
      time = new Date(value).getTime();
    } else if (isObject(value)) {
      time = value.getTime();
    }
    return time;
  }

  function setTime() {
    const { mode, value } = props;
    const time = getTime();
    if (mode === 'relative') {
      date.value = getRelativeTime(time);
    } else {
      if (mode === 'datetime') {
        date.value = formatToDateTime(value);
      } else if (mode === 'date') {
        date.value = formatToDate(value);
      }
    }
  }

  function getRelativeTime(timeStamp: number) {
    const currentTime = new Date().getTime();

    // Determine whether the incoming timestamp is earlier than the current timestamp
    const isBefore = dateUtil(timeStamp).isBefore(currentTime);

    let diff = currentTime - timeStamp;
    if (!isBefore) {
      diff = -diff;
    }

    let resStr = '';
    let dirStr = isBefore ? t('component.time.before') : t('component.time.after');

    if (diff < ONE_SECONDS) {
      resStr = t('component.time.just');
      // Less than or equal to 59 seconds
    } else if (diff < ONE_MINUTES) {
      resStr = parseInt(diff / ONE_SECONDS) + t('component.time.seconds') + dirStr;
      // More than 59 seconds, less than or equal to 59 minutes and 59 seconds
    } else if (diff >= ONE_MINUTES && diff < ONE_HOUR) {
      resStr = Math.floor(diff / ONE_MINUTES) + t('component.time.minutes') + dirStr;
      // More than 59 minutes and 59 seconds, less than or equal to 23 hours, 59 minutes and 59 seconds
    } else if (diff >= ONE_HOUR && diff < ONE_DAY) {
      resStr = Math.floor(diff / ONE_HOUR) + t('component.time.hours') + dirStr;
      // More than 23 hours, 59 minutes and 59 seconds, less than or equal to 29 days, 59 minutes and 59 seconds
    } else if (diff >= ONE_DAY && diff < 2623860000) {
      resStr = Math.floor(diff / ONE_DAY) + t('component.time.days') + dirStr;
      // More than 29 days, 59 minutes, 59 seconds, less than 364 days, 23 hours, 59 minutes, 59 seconds, and the incoming timestamp is earlier than the current
    } else if (diff >= 2623860000 && diff <= 31567860000 && isBefore) {
      resStr = dateUtil(timeStamp).format('MM-DD-HH-mm');
    } else {
      resStr = dateUtil(timeStamp).format('YYYY');
    }
    return resStr;
  }
</script>
